A/N:

After becoming the fifth spirit Elsa had the access to all of the memories through her connection with the water element.

Finally, one day she heard of a certain being that had excisted for a long time. Finally she is about to discover the mystery source of that sound that kept calling her with the voices from her heart.

Nightlight.
"Nightlight, bright light,
Sweet dreams I bestow.
Sleep tight, all night.
Forever I will glow."